What sort of follow-up testing can I receive if the results show an increased risk?
When First Trimester Screen | Fß risk assessments indicate that a patient is at increased risk for Down syndrome or trisomy 18 or 13, health care professionals often recommend one of two types of follow-up diagnostic tests to confirm the presence of birth defects or chromosomal abnormalities; Chorionic Villus Sampling (CVS) or amniocentesis. Both CVS and amniocentesis carry a small risk of complications, including miscarriage. Chorionic Villus Sampling (CVS) Performed in the first trimester of pregnancy, CVS involves the withdrawal of a small amount of chorionic tissue from the placenta. This tissue is then cultured and a chromosome analysis (a karyotype) is performed. Amniocentesis Typically performed between 15-20 weeks of pregnancy, amniocentesis involves a small amount of amniotic fluid being withdrawn from the uterus. The fluid is then sent to a lab, where a chromosome analysis (a karyotype) is performed.
When First Trimester Screen | Fß risk assessments indicate that a patient is at increased risk for Down syndrome or trisomy 18 or 13, health care professionals often recommend one of two types of follow-up diagnostic tests to confirm the presence of birth defects or chromosomal abnormalities, CSV or amniocentesis. Both CVS and amniocentesis carry a small risk of complications, including miscarriage. Chorionic Villus Sampling (CVS) Performed in the first trimester of pregnancy, CVS involves the withdrawal of a small amount of chorionic tissue from the placenta. This tissue is then cultured and a chromosome analysis (a karyotype) is performed. Amniocentesis Typically performed between 15-20 weeks of pregnancy, amniocentesis involves a small amount of amniotic fluid being withdrawn from the uterus. The fluid is then sent to a lab, where a chromosome analysis (a karyotype) is performed.
Related Questions
- If there is a wash-out effect when testing EtG with the potential risk of false-negative results, is this test still useful?
- Should postmenopausal women at increased risk of breast cancer take raloxifene or tamoxifen based on these results?
- Which women are at increased risk for having an abnormal Pap smear?
